Hi,
Please do try these troubleshooting steps. You'll need set AMD as your default graphics card.
- Right click on your screen (not hitting anything) then click on AMD Catalyst Control Center
- Click on PowerPlay then set Plugged In and Battery to Maximum Performance and click Apply.
- Go to Graphics then click on 3D and move the slider across to Performance so it is set for Optimal Performance meaning it should use the graphics card.
- Right click on the game that you're trying to play then select Open file location.
- Right click on the .exe file of the game and click on Run with graphics processor and select AMD Radeon.
- You may do this for all your games to make sure all of them would use AMD graphics card to play them.